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Differential graded module

Z-graded module with a compatible differential

Pronunciation
/ˌdɪfəˈrɛnʃəl ɡreɪdɪd ˈmɒdjuːl/
/ˌdɪfəˈrɛntʃəl ˈgreɪdəd ˈmɑʤul/